logger cable question.

[x1genx]

I have a 94 talon tsi 5spd turbo and here is my logger question.

I have a logger cable where instead of it just clipping into the diagnostic port it has 3 wires (red,black,green) they have male spade connectors at the end and they just slide right onto the female end of the port. I do not have directions nor can i find any info on where which wire should be placed. Has anyone used this style cable before and if so do you know where to hook up thos wires too? thank you in advance.